Biology 2217B Lecture Notes - Darpa, Inflammatory Bowel Disease, Vanilla Planifolia
17 May 2013
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Interchangeable terms: herbs usually leaves or seeds from temperate-origin plants, spices usually aromatic or pungent flowers, fruits, or bark of tropical-origin plants, both add flavoring to food. Spices: aromatic and pungent products of tropical plants, properties based on essential oils benzene or terpene derivatives. Herbs: small temperate plants used for aromatic constituents. Incenses: plant substances that release fragrances when burned. Scents and flavors usually use to unique essential oils : secondary compounds, especially isoprenoids (terpenes) Natural plant function in pollinator and fruit/seed-dispenser attraction. Plant protection from herbivores and pathogens (mostly fungi, bacteria) Most of these secondary compounds have anti-microbial activities. Herbs are more easily categorized see table 17. 3. Spices have no main families see table 17. 1. Many spices are tropical, and are rare or absent from our temperate part of the world. Derives from the latin word species, meaning specific kind, and later, goods or merchandise.
